How-to Fix An Unknown Error (1603) while updating iPhone firmware.

The iPhone “iPhone” could not be restored. An unknown error occurred (1603).
Fix 1603 Unknown Error by following these steps:
[click to continue…]
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How-to Fix An Unknown Error (1603) while updating iPhone firmware.

The iPhone “iPhone” could not be restored. An unknown error occurred (1603).
Fix 1603 Unknown Error by following these steps:
[click to continue…]
Also read: Top 10 Must Have Cydia Tweaks for iPhone, iPad, iPod touch
How-to Fix An Unknown Error (1601) while restoring iPhone custom firmware iOS 4.2.1.

The iPhone “iPhone” could not be restored. An unknown error occurred (1601).
Fix 1601 Unknown Error by following these steps:
[click to continue…]
Also read: Top 10 Must Have Cydia Tweaks for iPhone, iPad, iPod touch
How-to Fix An Unknown Error (1600) while restoring iPhone custom firmware iOS 4.2.1.

The iPhone “iPhone” could not be restored. An unknown error occurred (1600).
Fix 1600 Unknown Error by following these steps:
[click to continue…]
This tutorial will guide you how-to do Alt/Option and Restore on iTunes for Mac (Windows). The Alt/Option + Restore method below applies to iPhone, iPad, and iPod. By restoring iOS firmware, all content on the device (iPhone, iPad, or iPod) will be erased and will be reset to factory settings. Make sure to backup before restoring the iOS firmware to iPhone, iPad, or iPod.
If you are going to do this on PC (Windows), please use SHIFT keyboard button instead.

Follow these steps to restore iPhone firmware using Alt/Option + Restore method.
Also read: Top 10 Must Have Cydia Tweaks for iPhone, iPad, iPod touch
This tutorial will guide you how-to do shift restore on iTunes for PC (Windows). The shift + restore method below applies to iPhone, iPad, and iPod. By restoring iOS firmware, all content on the device (iPhone, iPad, or iPod) will be erased and will be reset to factory settings. Make sure to backup before restoring the iOS firmware to iPhone, iPad, or iPod.
If you are going to do this on Mac, please use Alt/Option keyboard button instead.
Follow these steps to restore iPhone firmware using SHIFT + Restore method.
